{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["location", "vehicle", "geographical phenomenon", "food", "plant", "animal"], "input": "The participants of this experiment were 36 boys and 36 girls from the Stanford University nursery school , all between the ages of 37 months and 69 months with a mean age of 52 months ( here and following , ) ."}
{"location": [], "vehicle": [], "geographical phenomenon": [], "food": [], "plant": [], "animal": []}